Many athletes from many sports + sport doctors have said that sport is healthy for you but top sport isn't.
Many top athletes perform their sport in pain. If you want to reach the top of a sport, you need to push and push yourself, you need to find the edge and see if you can move that edge further and further. So, they push their body into doing things that's beyond healthy.
The difference is that Rafa talks more about it than others.
(I'm sorry I can't goodrep you back